Synthesis and Optical Characterization of Hydrazone-Substituted Push-Pull-Type NLOphores.

ABSTRACT: Two distinct families of NLOphores featuring hydrazone donors were synthesized using click-type [2 + 2] cycloaddition retroelectrocyclizations (CA-RE). Despite the limitations in the substrate scope, it was shown for the first time that hydrazone-activated alkynes could undergo reactions with TCNE/TCNQ. The electrochemical, photophysical, and second-order nonlinear optical (NLO) characteristics of the chromophores were analyzed utilizing experimental and computational approaches. Chromophores 17-21 and 23-27 exhibited two reduction waves, along with one oxidation wave that can be attributed to the hydrazone moiety. All chromophores exhibit charge-transfer bands extending from the visible to the near-infrared region. The λ_max of hydrazone-based chromop

SUBMITTER: Erden K 

PROVIDER: S-EPMC11421011 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature